The new Pyro utilizes Sierra Designs new Core Comfort Technology, to allow a comfortable and warm night wherever adventure takes you. Core Comfort Technology combines innovation in insulation location and sleeping bag construction. Meaning the down fill is more strategically placed, prioritized according to a comfort body-mapping process. Maximum loft and warmth are ensured by an advanced double-baffle system. The combined technologies provide warmth precisely where needed. CCT Torso Panel. Snag-free zipper tracks. Draw cord at collar. Draft collar. Pillow pocket. Easy access, ventable, 60 inch zipper. Zipper draft tube. Ergonomic hood and footbox. Includes stuff and storage sacks. Shape: Mummy. Fits to: 6 ft / 183 cm. Length: 78 in / 198 cm. Zipper Side: Left. Fill weight: 29 oz / .8 kgTotal weight: 3 lbs 0 oz / 1.36 kg. Stuffed diameter: 9 in / 23 cm. Stuffed length: 16 in / 41 cm.